You can get rid of a hickey by applying some ice to the hickey.
The ice will get rid of the hickey by reducing the swelling and inflammation of the hickey.
Another home remedy to get rid of hickeys is to take either peppermint oil or toothpaste and apply either one to the hickey.
Leave the peppermint oil or coconut oil on the hickey for a few minutes. With the peppermint oil you might feel a tingling sensation but it's normal and will go away within a minute or two.